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Voon, Chun Hong
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023Dielectric Properties and Microwave Absorbing Properties of Silicon Carbide Nanoparticles and Silicon Carbide Nanowhiskers
- 2023Feasibility Study of Microwave Welding of Polypropylene Using Silicon Carbide Nanowhiskers as Microwave Susceptorcitations
- 2023Formation of polypropylene nanocomposite joint using silicon carbide nanowhiskers as novel susceptor for microwave weldingcitations
- 2018Characterization of reduced graphene oxide obtained from vacuum-assisted low-temperature exfoliated graphitecitations
- 2017Synthesis of silicon carbide nanowhiskers by microwave heating: effect of heating durationcitations
- 2016Novel synthesis of silicon carbide nanotubes by microwave heating of blended silicon dioxide and multi-walled carbon nanotubes: The effect of the heating temperaturecitations
- 2015Real-time detection by properties of tin dioxide for formaldehyde gas sensorcitations
- 2015Deposition and characterization of ZnO thin film for FET with back gate biasing-based biosensors applicationcitations
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article
Dielectric Properties and Microwave Absorbing Properties of Silicon Carbide Nanoparticles and Silicon Carbide Nanowhiskers
Abstract
Silicon carbide (SiC) is well known for their outstanding microwave absorbing properties. SiC nanomaterials (SiCNMs) are expected to have better microwave absorption performance due to their high specific surface area. To date, no study was reported to compare the dielectric properties and microwave absorbing properties of different type of SiCNMs. Therefore, the objective of this paper is to compare the dielectric properties and microwave absorption properties of different types of SiCNMs. In this paper, SiC nanoparticles (SiCNPs) and SiC nanowhiskers (SiCNWs) were characterised using SEM and XRD. In addition, their dielectric properties and microwave absorbing properties were measured using network analyser and transmission line theory. It was found that SiCNWs achieved higher dielectric constant and loss factor which are and εr’ =17.94 and εr″ = 2.64 compared to SiCNPs that only achieved εr’ = 2.83 and εr″ = 0.71. For microwave absorbing properties, SiCNWs and SiCNPs attained minimum reflection loss of -10.41 dB and -6.83 dB at 5.68 GHz and 17.68 GHz, respectively. The minimum reflection loss of SiCNPs and SiCNWs obtained in this study is much lower than the nanometer-SiC reported previously. These results suggested that SiCNWs can be an ideal candidate of microwave susceptors for various microwave applications.